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Dynamite Friction 631-47021L Disc Brake Rotor - Front Left
Overview of Dynamite Friction DFC Brake Rotor
The Dynamite Friction DFC Brake Rotor - Drilled and Slotted - Silver offers reliable braking performance for Chevrolet Corvette models. Designed with precision, this vented disc brake rotor ensures effective heat dissipation and consistent stopping power under demanding conditions.
- Part Number: 631-47021L
- Compatible with Chevrolet Corvette
- Vented disc brake rotor with drilled and slotted surface
- Silver zinc-coated hat finish for corrosion resistance
- Directional brake surface for optimized performance
- Nominal thickness: 20 mm; Discard thickness: 18.4 mm
- Outside diameter: 305 mm; Overall height: 55.6 mm
- 5 bolt holes with 13 mm diameter and 120.7 mm bolt circle diameter
Detailed Product Features and Specifications
This Dynamite Friction rotor features a vented design that improves airflow to reduce heat buildup during braking. The drilled and slotted surface enhances water and debris evacuation, helping maintain consistent brake pad contact and reducing brake fade. The rotor’s directional surface is engineered to optimize braking efficiency and performance on Chevrolet Corvette vehicles. The zinc silver hat finish provides rust resistance, extending the rotor’s service life. With a nominal thickness of 20 mm and a discard thickness of 18.4 mm, this rotor meets precise wear specifications to ensure safe operation. The 5-bolt hole pattern with a 13 mm diameter and 120.7 mm bolt circle diameter matches the factory specifications for proper fitment.
DFC Brake Rotor - Drilled and Slotted - Silver Product Line
The DFC Brake Rotor - Drilled and Slotted - Silver line by Dynamite Friction focuses on delivering rotors with enhanced surface treatments such as drilling and slotting combined with corrosion-resistant finishes. This product line is designed to provide improved braking performance and durability for vehicles requiring vented rotors with directional surfaces. The silver zinc coating on the rotor hat adds an extra layer of protection against rust, making it suitable for various driving conditions.
Applications and Problem Solving
- Reduces brake fade during high-performance or spirited driving
- Improves water and debris clearance for consistent braking in wet conditions
- Prevents rust and corrosion on rotor hats for longer service life
- Maintains proper braking performance with vented design to dissipate heat
- Ensures precise fitment for Chevrolet Corvette models requiring 5-lug, 305 mm rotors
Installation Notes and Tips
Ensure the rotor is installed on compatible Chevrolet Corvette models matching the 5-lug bolt pattern and dimensions. Verify the rotor thickness before installation; replace if below the discard thickness of 18.4 mm. Clean the rotor surface and hub mounting area to remove any contaminants before mounting. Use proper torque specifications for the 5 bolts with 13 mm diameter holes to secure the rotor safely. Directional rotors must be installed following the indicated rotation direction for optimal performance.
Quality Assurance and Warranty
Dynamite Friction manufactures this rotor to meet or exceed OEM specifications for fit, form, and function. The rust-resistant zinc silver coating on the rotor hat enhances durability against corrosion. While specific warranty details are not provided, Dynamite Friction products typically undergo rigorous quality control to ensure reliable braking performance on Chevrolet Corvette vehicles.
| Brand | Dynamite Friction |
|---|---|
| Part Number | 631-47021L |
| Position | DFC Brake Rotor - Drilled and Slotted - Silver, Front Left |
| Discard Thickness | 18.4 |
| Nominal Thickness | 20 |
| Bolt Hole Diameter | 13 |
| Disc Finish | Plain |
| Hat Finish | Zinc silver |
| Rust Resistant Coating | Yes |
| Bolt Hole Quantity | 5 |
| Overall Height | 55.6 |
| Outside Diameter | 305 |
| Height | 55.6 |
| Surface Type | Slotted x drilled |
| Solid Or Vented Type Rotor | Vented |
| Center Hole Diameter | 70.7 |
| Stud/Lug Hole Quantity | 5 |
| Stud/Lug Hole Diameter | 13 |
| Directional or Non-Directional Brake Surface | Directional |
| Bolt Circle Diameter | 120.7 |
| Stud/Lug Hole Circle Diameter | 120.7 |
This part fits 7 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 1994 | Chevrolet | Corvette | Front Left | Standard Suspension; DFC Brake Rotor - Drilled and Slotted - Silver |
| 1993 | Chevrolet | Corvette | Front Left | Standard Suspension; DFC Brake Rotor - Drilled and Slotted - Silver |
| 1992 | Chevrolet | Corvette | Front Left | Standard Suspension; DFC Brake Rotor - Drilled and Slotted - Silver |
| 1991 | Chevrolet | Corvette | Front Left | Standard Suspension; DFC Brake Rotor - Drilled and Slotted - Silver |
| 1990 | Chevrolet | Corvette | Front Left | Standard Suspension; DFC Brake Rotor - Drilled and Slotted - Silver |
| 1989 | Chevrolet | Corvette | Front Left | Standard Suspension; DFC Brake Rotor - Drilled and Slotted - Silver |
| 1988 | Chevrolet | Corvette | Front Left | Standard Suspension; DFC Brake Rotor - Drilled and Slotted - Silver |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.